@russbutton *S* Someone who can R(ant) & R(ave)s' better than me.... ;)
...and does a fine cover of the sense of the process...
1st serious speakers were a pair of 901s2s' with it's active eq.... Yes, not a 'xover' in fact, but they'd sound all sort of strange without....
Next iteration was a pair of Infinitys' with an equalizer in the tape loop, which began to allow for a crude DSPish approach; xover still onboard the speakers, but edging closer....
Following that, the Kenwood L series with the outboard mono amps....an AudioControl C-101 eq with a calibrated mic that allowed to employ a more serious
launch into DSP. Sure, the AMT 1Bs' still had their onboard xover, but it was just a 2 way that handed most off to the large Heils'....and the xover just tweaked the point between.... I still have a pair of the xovers for references' sake, but on the shelf....
These days.....one could say 'in excess', but...*G* I prefer 'flexibility'....
Xovers': a Behringer, a dbx, a Parasound C2, and an ESS Eclipse 2241AM; the latter an unusual item I've devious designs upon....
Eq available: The 'puter can supply whatever wherever, pre or post....as can a pair of Behringers' and the C2. All of which can host a mic....
14 channels of amplification, 12 of which can be mono'd to 6.
And a self amp'd sub.
"Bi-amp....how...quaint...." ;)